Title:
REFRIGERATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2016/174822
Kind Code:
A1
Abstract:
In the present invention, a controller (13) makes first and second opening adjustments during cooling operation. In the first opening adjustment, the controller (13) adjusts the opening of intermediate expansion valves (36a,36b,36c) so that the temperature (Td) of the refrigerant discharged from compressors (31a, 31b, 31c) falls below a discharge high-temperature threshold (Tdth). In the second opening adjustment, the controller (13) adjusts the opening of a supercooling expansion valve (35) so that the temperature of the refrigerant flowing between a supercooling heat exchanger (34) and the intermediate expansion valves (36a, 36b, 36c) in an injection pipe (54) exceeds a freezing temperature threshold (Tfth).
Inventors:
TAKEGAMI MASAAKI
KONDOU AZUMA
KONDOU AZUMA
Application Number:
PCT/JP2016/001846
Publication Date:
November 03, 2016
Filing Date:
March 30, 2016
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B1/00
Foreign References:
| JP2012137207A | 2012-07-19 | |||
| JP2014016079A | 2014-01-30 | |||
| JP2007127302A | 2007-05-24 | |||
| JP2009287800A | 2009-12-10 |
Other References:
See also references of EP 3290825A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
Patent business corporation MAEDA PATENT OFFICE (JP)
Patent business corporation MAEDA PATENT OFFICE (JP)
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